Thread-guide.



. E. HAYES.

THREAD GUIDE.

APPLICATION ULEB JULYV, 1913.

1,099,745, Patented June 9, 1914J LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLUNITED STATES PATENT OFFICE.

CHARLES E. HAYES; OF BROCKTON, MASSACHUSETTS.

THREAD-GUIDE.

To aZZ whom it maj/ conccrn Be it known that T, CHARLES E. HAYEs, acitizen of the United States, residing at Brockten, in the County ofPlymouth and State of Massachusetts, have invented ccrtain new anduseful Improvements in Thread-Guides, of which the following is aspecification.

This invention relates to improvementsin thread guides, and moreparticularly to detachable attachments for sewing machines and the like.

The object in view is the avoidance of undue friction and the obviationof danger of dislocation of the thread supply spool from its mounting.

lVith these and further objects in view, as will hereinafter become inpart apparent and in part be stated, the invention compriscs a plateadapted to be detachably connccted to the spool carrying spindle of amachine, and a spring loop `carried by the plate and provided withthread guiding eyes adapted to direct thread delivered from the spoolsustained by the spindle.

The invention comprises certain other novel Constructions, combinationsand arrangements of parts, as will be hereinafter specified and claimed.

Tn the accompanying drawings:-Figure 1 is a perspective view of anattachment embodying the features of the present invention, theattachment being illustrated as applied to sewing machines. Fiat 2 is anedge view of the attachment detached. Fig. 3 is a front elevationthereof.

Referring to the drawings by numerals, 1 indicates a plate havingl acentral aperture 2 enabling the plate to be applied onto thespool-receiving spindle 3 of a sewing machine or other like apparatusrequiring a supply of thread or yarn. A set screW 4, or other looking`means, is provided for detachably but firmly securing` the plate 1 inposition, said set screw being threaded through the material of plate 1and engaging` the spindle 3. A Spring loop 5 is preferably formed ofsuitable Spring Wire and has its ends fixed to the respective ends ofthe plate 1. The Wiring comprising the loop 5 is curled into eyes 6, 7and 8, the eye 6 being disposed at the crown of the arch or curvedportion of the loop, the eye 7 being disposed at the upper end of thestraight shank of the loop at one side, and the eye 8 being disposedadjaeent the lower end of Specficaton of Letters Patent.

Application filed July 7, 1913.

Patented June 9, 1914. Serial No. 777,724.

said shank, the opposite shank of the loop being formed with a laterallyextended Spring portion 9 which increases the flexibility of the loopand which terminates at its outer end in an eye 10, for purposeshereinafter specified.

In practice it has been found where a spool of greater length than thespindle 3 is applicd to the spindle. feedingI of the thread from suchspool through a. fixed lguide dis` posed centrally of the length of thespool occasions friction incident to the varying angles at which thethread is disposcd with respect to the spool duringI the course ofbeing` fed therefrom, and in some instances where the eye is spaced somedistance from the spool this friction becomes suflicient, as the threadis fed from portions of the spool adjacent the upper end thereof, tocause the spool. to tilt, owing` to its loose it on the spindle 3, andto thus be caused to feed irregula-rly. The present invention ohviatesthese difficulties by virtue of the disposition of the guiding eye (S incombination with the loop 5 whose fiexibility enables the eye 6 to moveand give under any stress incident to friction so as to leave the spoolstationary. Obviously under ordinary conditions the feeding of thethread upwardly from the spool will cause the thread to travel about theupper end of the spool while the spool remains unmoved, but at times thethread may become caught on the edge of the flange of the spool becauseof some irregularity in the flange and in that event the further takingup of thread by the machine causes the thread to become taut and flexesthe loop 5, after the manner indicated in dotted lines in Fig. 2, untilthe eye 6 moves past the point of frictional contact and thus releasesthe thread from its ene'agement with the flange of the spool. The threadis preferably passed through the eyes G. 7 and 8 so that the loop 5 isleft free to be fiexed in any direction Without altering the point ofdelivery of thread.

The Spring portion 9 consists merely of a lateral loop having its outeror free extremity curled into the eye and this loop enables theemployment of suiiiciently rigid wire for forming the loop 5 to insurethe maintenance of an upria'ht position thereof except under stress, andat the same time renders the Structure sufliciently flexible to readilygive when relative dislocation of the eye 6 is required.

W'hen a comparatively short spool is employed7 say for instance a spoolas short or shorter than the spindle 3, the feeding of the threadthrough a fixed guide laterally from the spool is not subject to theobjections mentioned With respect to a similar feeding of the threadfrom a longer spool because the angle never becomes great enough toproduce any seriously objectionable features and the spool is incapableof tilting eXcessively because of its relative size With respect to thespindle. Hence the eye 10 is serviceable for the feeding of thread froma spool of this length and the spool from which thread is fed throughthe eye 6. The fact that the eye 10 outstands laterally from the loopenables the eye to occupy a position at one side of the center of thespool so as to enable the thread passing through the eye 10 to eXtendsubstantially straight out laterally from the spool.

Having thus described the invention, What is claimed as new is 1. In athread feeding attachment, the combination of a spring loop adapted tobe disposed about a thread supply spool, and means for securing the loopin position, said loop being formed with a thread guiding eye arrangedin line With the spool, one of the shanks of the loop being formed Witha lateral loop for increasing the flexibility of the first mentionedloop.

2. In a thread feeding attachment, the combination of a spring loopadapted to be disposed about a thread supply spool, and means forsecuring the loop in position, said loop being formed With a threadguiding eye arranged in line With the spool, one of the shanks of theloop being formed With a lateral loop for increasing the flexibility ofthe first mentioned loop, the last mentioned loop being formed With aneye at its outer terminus.

In testimony Whereof I afiix my Signature in presence of tWo Witnesses.

CHARLES E. HAYES.

lVitnesses STEWART B. MGLEOD, ANNABEL O. LYNOH.

Gopics o! this patent may be obtaine. for

five cents each, by adressing the Gommissioner of Patents, Washington,D. 0.

